In article ,
M. J. Powell wrote:
In message , Hamisha3
writes
Not to take anything away from BarnesWallis but why does a simple torpedo not
do the same as the boune bomb, detonate against the dam wall at a pre set
depth?

1. There may have been anti-torpedo nets.

*Were*, IIRC. Aren't they visible in some of the recon. photographs?

2. Because there were no torpedoes carrying about 4 tons of H.E.

Could *possibly* have been done if you were content with a short/slow
run, maybe by starting with something like the big fortress torpedoes
which did for Bluecher in Oslofjord. It'd be a swine to lift, though
and probably even the lanc couldn't have hauled one that distance
and dropping it in a way which it was likely to survive would
be challenging to say the least and probably impossible.

--
Andy Breen ~ Interplanetary Scintillation Research Group
http://users.aber.ac.uk/azb/
"Time has stopped, says the Black Lion clock
and eternity has begun" (Dylan Thomas)